Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1994-11-29
1998-01-20
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 71, B41J 2045
Patent
active
057105847
ABSTRACT:
An ink jet recording head formed by laminating and fixing: a flow path forming plate having through holes for defining pressure producing chambers, ink supply inlets, and a common ink chamber, a nozzle plate having nozzle openings communicating with the pressure producing chambers, and a vibration plate having diaphragm portions that are resiliently deformed in response to displacement of piezoelectric vibration elements one upon another with an adhesive so as to be watertight. The vibration plate has frame-like thick wall portions that extend as far as to the ink supply inlet side of the pressure producing chamber as well as to the inner side of the nozzle opening, and portions closer to a piezoelectric vibration element than to both ends of the pressure producing chamber are made to be supported by a base. As a result of this construction, a nonsupported region of the pressure producing chamber can be shortened, which in turn improves the rigidity of a substrate unit as a whole.
REFERENCES:
patent: 5381171 (1995-01-01), Hosono et al.
patent: 5424769 (1995-06-01), Sakai et al.
patent: 5471232 (1995-11-01), Hosono et al.
Miura Kazuhiko
Naka Takahiro
Okazawa Noriaki
Suzuki Kazunaga
Usui Minoru
Dickens Charlene
Fuller Benjamin R.
Seiko Epson Corporation
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